128524640

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{3361}}^1$

素因数の和:3615

約数の個数: 48

約数和(自身を含む): 305000640

約数和(自身を除く): 176476000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 956, 1195, 1912, 2390, 3361, 3824, 4780, 6722, 7648, 9560, 13444, 16805, 19120, 26888, 33610, 38240, 53776, 67220, 107552, 134440, 268880, 537760, 803279, 1606558, 3213116, 4016395, 6426232, 8032790, 12852464, 16065580, 25704928, 32131160, 64262320, 128524640]

約数ペア:

[(1, 128524640), (2, 64262320), (4, 32131160), (5, 25704928), (8, 16065580), (10, 12852464), (16, 8032790), (20, 6426232), (32, 4016395), (40, 3213116), (80, 1606558), (160, 803279), (239, 537760), (478, 268880), (956, 134440), (1195, 107552), (1912, 67220), (2390, 53776), (3361, 38240), (3824, 33610), (4780, 26888), (6722, 19120), (7648, 16805), (9560, 13444)]